Noteworthy Tuesday Option Activity: BIIB, MMM, YHOO
September 15, 2015 at 14:43 PM EDT
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Biogen Inc (BIIB), where a total volume of 14,114 contracts has been traded thus far today, a contract volume which is representative of approximately 1.4 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 60.3% of BIIB's average daily trading volume over the past month, of 2.3 million shares..